Pebble Time Round vs. Fitbit Ionic vs. Casio WSD-F20A vs. Polar Loop vs. Amazfit T-Rex

 
Time Round
Ionic
WSD-F20A
Loop
T-Rex
 PebbleTime RoundRemove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$299$399$100$140
Release20152017201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days4+ days1 day5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250320 x 320NA360 x 360
Sizeround1.421.32 inchesNA1.3 inches
Touch
Typee-paperOLEDLCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX750m5 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSFitbit OSWear OSNABuild-in
Apps
Music

All Wearables